What we should learn from him...

Is to be a Champion of the Game!

Credit: Rio2016

Even though he suffered a big loss in his career, he placed credit to del Potro, embraced him and took a bow before better (this time match) player.

He said 'Delpo was a better player and he just deserved to win...He just came up with some extraordinary tennis and I have to congratulate him'!

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A lesson to be learned...

As he deserves his Knight of Tennis title!

Heads up, Nole! 

Serbia respectfully pronouncing your name!